6500549800791 has 16 divisors (see below), whose sum is σ = 9630735716320. Its totient is φ = 4333568662080.

The previous prime is 6500549800777. The next prime is 6500549800793. The reversal of 6500549800791 is 1970089450056.

6500549800791 is a `hidden beast` number, since 6 + 5 + 0 + 0 + 549 + 8 + 0 + 0 + 7 + 91 = 666.

It is not a de Polignac number, because 6500549800791 - 2⁶ = 6500549800727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6500549800793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2732110 + ... + 4523883.

It is an arithmetic number, because the mean of its divisors is an integer number (601920982270).

Almost surely, 2^{6500549800791} is an apocalyptic number.

6500549800791 is a deficient number, since it is larger than the sum of its proper divisors (3130185915529).

6500549800791 is a wasteful number, since it uses less digits than its factorization.

6500549800791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7289183 (or 7289177 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 6500549800791 in words is "six trillion, five hundred billion, five hundred forty-nine million, eight hundred thousand, seven hundred ninety-one".